Today, I have not been able to open LingQ on Safari. The website just shows white with the support question mark in corner still there. When I click on it, it just opens a white box. I do not have this issue on Firefox.
I’m writing you this comment from LingQ on Safari 
Have you checked to make sure Safari is up to date? Or force quit it, cleared your cache, and tried again?
Strange, sorry to hear that. Do you still have the same problem?